Screening mechanism for antistatic PBT particles

Abstract

The utility model relates to the technical field of screening mechanisms, and discloses an antistatic PBT particle screening mechanism which comprises a frame and a feeding hopper and further comprises a screening part, a screening part, a feeding part and a discharging part. The material separating assembly is arranged on the feeding hopper and is used for separating the adhered PBT particles; the screening component comprises a fixing frame, the fixing frame is arranged on the outer side of the frame, a fixing rod is installed in the fixing frame, and the outer surface of the fixing rod is sleeved with a movable frame and a first spring. Through operation of a second motor, a rolling wheel can rotate, so that a first round wheel can be driven to rotate, PBT particles falling onto the rolling wheel can be rolled by the first round wheel and a second round wheel, and the first round wheel can have a moving space under the elastic force of a second spring to prevent the PBT particles from being crushed; and the PBT sticking blocks can be rubbed open during movement, so that the PBT is relatively dispersed during screening.

Description

Technical Field

[0001] The utility model relates to the technical field of screening mechanisms, and more specifically, to a screening mechanism for antistatic PBT particles. Background Art

[0002] Most of the PBT resin is processed into compounding materials for use. After being modified with various additives, it can be blended with other resins to obtain good comprehensive properties such as heat resistance, flame retardancy, electrical insulation and good processing performance. When producing it, it is usually necessary to use an extruder to extrude it and cut it into particles. After the PBT particles are formed, a screening mechanism is needed to screen out the PBT particles that do not meet the particle size standards. When the PBT particles are put into the screening mechanism, some of the PBT particles will become sticky due to the influence of pressure or temperature, resulting in the sticky particles forming a lump when screening and unable to pass through the screen, thereby affecting the effect of PBT particle screening. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a screening mechanism for antistatic PBT particles, which has the advantage of preventing the PBT particles from sticking and being difficult to screen out.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a screening mechanism for antistatic PBT particles, including a frame and a feed hopper, and also including:

[0005] A screening component, which is arranged on the frame and is used for screening PBT particles;

[0006] A material separation component, which is arranged on the feed hopper and is used to separate the sticky PBT particles;

[0007] The screening component comprises a fixed frame, the fixed frame is arranged on the outside of the frame, a fixed rod is installed inside the fixed frame, a movable frame and a first spring are sleeved on the outer surface of the fixed rod, a screening frame is installed at the bottom end of the movable frame, a screen is arranged inside the screening frame, a first motor is installed on one side of the fixed frame, a cam is installed on the output shaft of the first motor, and a discharge frame is installed at the bottom of the frame;

[0008] Among them, the material distribution component includes a second motor, the second motor is installed on one side of the feed hopper, the output shaft of the second motor is installed with a roller, the outer side of the roller is provided with a first slot, a fixed shaft is installed inside the first slot, the outer surface of the fixed shaft is sleeved with a movable plate and a second spring, the end of the movable plate is sleeved with a first round wheel, and a second round wheel is arranged inside the feed hopper.

[0009] As a preferred technical solution of the utility model, a wind tube is sleeved on one side of the frame, one end of the wind tube passes through the frame and is installed with a gear, a second slot is opened on one side of the frame, a round rod is installed inside the second slot, and a third spring and a limit block are sleeved on the outer surface of the round rod.

[0010] As a preferred technical solution of the utility model, the first spring is elastically supported between the fixed frame and the movable frame, and the cam is in compression contact with the movable frame.

[0011] As a preferred technical solution of the present utility model, the second spring is elastically supported between the first notch and the movable plate.

[0012] As a preferred technical solution of the utility model, the gap between the first circular wheel and the second circular wheel is smaller than the size of the PBT particles.

[0013] As a preferred technical solution of the utility model, one side of the limit block is tooth-shaped, and the limit block is meshedly connected with the gear.

[0014] As a preferred technical solution of the utility model, the third spring is elastically supported between the second notch and the limit block, and the air duct is connected to an external fan.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model uses the elastic force of the second spring to push the movable plate to move along the outer surface of the fixed shaft and drive the first round wheel. At this time, the operation of the second motor will cause the roller to rotate, thereby driving the first round wheel to rotate, so that the PBT particles falling on the roller will be crushed by the first round wheel and the second round wheel, and the first round wheel can have a movable space under the elastic force of the second spring to prevent the PBT particles from being crushed, so that the first round wheel can rub off the sticky and agglomerated PBT when it moves, and then make it more dispersed when screening it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the front side of the utility model;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5It is a schematic diagram of the disassembly structure of the roller of the utility model.

[0022] In the figure: 1, frame; 2, feed hopper; 3, fixed frame; 4, fixed rod; 5, movable frame; 6, first spring; 7, gear; 8, first motor; 9, cam; 10, screening frame; 11, screen; 12, second motor; 13, discharge frame; 14, roller; 15, first notch; 16, fixed shaft; 17, movable plate; 18, second spring; 19, first round wheel; 20, second round wheel; 21, air cylinder; 22, limit block; 23, second notch; 24, round rod; 25, third spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 5 As shown, the utility model provides a screening mechanism for antistatic PBT particles, comprising a frame 1 and a feed hopper 2, and also comprising:

[0025] A screening component, which is arranged on the frame 1 and is used for screening PBT particles;

[0026] A material separation component, which is arranged on the feed hopper 2 and is used to separate the sticky PBT particles;

[0027] The screening component includes a fixed frame 3, which is arranged on the outside of the frame 1, a fixed rod 4 is installed inside the fixed frame 3, a movable frame 5 and a first spring 6 are sleeved on the outer surface of the fixed rod 4, a screening frame 10 is installed at the bottom end of the movable frame 5, a screen 11 is arranged inside the screening frame 10, a first motor 8 is installed on one side of the fixed frame 3, a cam 9 is installed on the output shaft of the first motor 8, and a discharge frame 13 is installed at the bottom of the frame 1;

[0028] Among them, the material dispensing component includes a second motor 12, the second motor 12 is installed on one side of the feed hopper 2, the output shaft of the second motor 12 is installed with a roller 14, the outer side of the roller 14 is provided with a first slot 15, the interior of the first slot 15 is installed with a fixed shaft 16, the outer surface of the fixed shaft 16 is sleeved with a movable plate 17 and a second spring 18, the end of the movable plate 17 is sleeved with a first round wheel 19, and the interior of the feed hopper 2 is provided with a second round wheel 20.

[0029] The elastic force of the second spring 18 will push the movable plate 17 to move along the outer surface of the fixed shaft 16 and drive the first round wheel 19. At this time, the operation of the second motor 12 will cause the roller 14 to rotate, thereby driving the first round wheel 19 to rotate, so that the PBT particles falling on the roller 14 will be crushed by the first round wheel 19 and the second round wheel 20. The first round wheel 19 can have a movable space under the elastic force of the second spring 18 to prevent the PBT particles from being crushed, so that the first round wheel 19 can rub off the sticky and agglomerated PBT when it moves, and then make it more dispersed when screening it.

[0030] Among them, a wind tube 21 is sleeved on one side of the frame 1, one end of the wind tube 21 passes through the frame 1 and is installed with a gear 7, a second slot 23 is opened on one side of the frame 1, a round rod 24 is installed inside the second slot 23, and a third spring 25 and a limit block 22 are sleeved on the outer surface of the round rod 24.

[0031] When screening PBT particles, the PBT particles will gradually fall along the tilted direction of the top of the screen 11. The design of the air duct 21 can blow air in the opposite direction of the falling direction of the PBT particles, which can increase the screening time of the PBT particles and make the PBT material more dispersed.

[0032] The first spring 6 is elastically supported between the fixed frame 3 and the movable frame 5 , and the cam 9 is in compression contact with the movable frame 5 .

[0033] Through the design of the first spring 6, the movable frame 5 has good elastic reset performance. At this time, since the first spring 6 is in a compressed state, an elastic force will be applied to the movable frame 5. When the cam 9 releases the squeezing of the movable frame 5, the screening frame 10 can be reset through the movable frame 5, and then the screen 11 can be driven to shake up and down to screen the PBT particles.

[0034] The second spring 18 is elastically supported between the first notch 15 and the movable plate 17 .

[0035] The design of the second spring 18 allows the movable plate 17 to have good elastic reset performance. At this time, since the second spring 18 is in a compressed state, an elastic force is applied to the movable plate 17, thereby driving the first round wheel 19 to squeeze the PBT particles.

[0036] The gap between the first round wheel 19 and the second round wheel 20 is smaller than the size of the PBT particles.

[0037] Through the design of the first round wheel 19 and the second round wheel 20, the PBT particles passing between the first round wheel 19 and the second round wheel 20 will be squeezed, so that they can be separated when passing through the first round wheel 19 and the second round wheel 20 to avoid sticking.

[0038] One side of the limit block 22 is tooth-shaped, and the limit block 22 is meshedly connected with the gear 7 .

[0039] Through the cooperation between the limit block 22 and the round rod 24, the round rod 24 can move along the outer surface of the limit block 22. At the same time, through the cooperation between the limit block 22 and the gear 7, the wind tube 21 can be limited by the gear 7, thereby facilitating the adjustment of the blowing angle of the wind tube 21.

[0040] The third spring 25 is elastically supported between the second notch 23 and the limit block 22 , and the air cylinder 21 is connected to an external fan.

[0041] Through the design of the third spring 25, the limit block 22 has good elastic reset performance. At this time, since the third spring 25 is in a compressed state, an elastic force is applied to the limit block 22, so that the fit between the limit block 22 and the gear 7 is tighter.

[0042] The working principle and use process of this utility model:

[0043] First, the staff can feed materials through the feed hopper 2. At this time, the operation of the second motor 12 will cause the roller 14 to rotate and drive the first round wheel 19 to rotate. At the same time, the elastic force of the second spring 18 will push the movable plate 17 to move along the outer surface of the fixed shaft 16 and drive the first round wheel 19, so that the PBT particles falling on the roller 14 will be crushed by the first round wheel 19 and the second round wheel 20, and the first round wheel 19 can have a movable space under the elastic force of the second spring 18 to prevent the PBT particles from being crushed, so that it can rub off the sticky and agglomerated PBT when it moves, and then make it more dispersed when screening it.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening mechanism for antistatic PBT particles, comprising a frame (1) and a feed hopper (2), characterized in that: Also includes: A screening component, which is arranged on the frame (1) and is used for screening PBT particles; A material separation component, which is arranged on the feed hopper (2) and is used to separate sticky PBT particles; The screening component comprises a fixed frame (3), the fixed frame (3) being arranged outside the frame (1), a fixed rod (4) being installed inside the fixed frame (3), a movable frame (5) and a first spring (6) being sleeved on the outer surface of the fixed rod (4), a screening frame (10) being installed at the bottom end of the movable frame (5), a screen (11) being arranged inside the screening frame (10), a first motor (8) being installed on one side of the fixed frame (3), a cam (9) being installed on the output shaft of the first motor (8), and a discharge frame (13) being installed at the bottom of the frame (1); The material dispensing assembly comprises a second motor (12), the second motor (12) being mounted on one side of the feed hopper (2), the output shaft of the second motor (12) being mounted with a roller (14), the outer side of the roller (14) being provided with a first notch (15), the interior of the first notch (15) being provided with a fixed shaft (16), the outer surface of the fixed shaft (16) being sleeved with a movable plate (17) and a second spring (18), the end of the movable plate (17) being sleeved with a first round wheel (19), and the interior of the feed hopper (2) being provided with a second round wheel (20).

2. The screening mechanism for antistatic PBT particles according to claim 1, characterized in that: A wind tube (21) is sleeved on one side of the frame (1); one end of the wind tube (21) passes through the frame (1) and is mounted with a gear (7); a second notch (23) is opened on one side of the frame (1); a round rod (24) is mounted inside the second notch (23); a third spring (25) and a limit block (22) are sleeved on the outer surface of the round rod (24).

3. The screening mechanism for antistatic PBT particles according to claim 1, characterized in that: The first spring (6) is elastically supported between the fixed frame (3) and the movable frame (5), and the cam (9) is in compression contact with the movable frame (5).

4. The screening mechanism for antistatic PBT particles according to claim 1, characterized in that: The second spring (18) is elastically supported between the first notch (15) and the movable plate (17).

5. The screening mechanism for antistatic PBT particles according to claim 1, characterized in that: The gap between the first circular wheel (19) and the second circular wheel (20) is smaller than the size of the PBT particles.

6. The screening mechanism for antistatic PBT particles according to claim 2, characterized in that: One side of the limit block (22) is tooth-shaped, and the limit block (22) is meshingly connected to the gear (7).

7. The screening mechanism for antistatic PBT particles according to claim 2, characterized in that: The third spring (25) is elastically supported between the second notch (23) and the limit block (22), and the air cylinder (21) is connected to an external fan.

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